Carbureter.



A. KUGLER.

GARBURETER.

APPLIoATxoN FILED MAR. 174, 1909.

2 SHEETS-SHEET 1.

umu runs. ln: Lunamsnmalo. D c

Patented 001.2115411.

A. KUGLER.

OARBURBTBR. APPLICATION rILnn HABA?. 196s.

Ptiliieilted Oct. 24, 1911.

3 SHEETS-SHEET 2.

llllsllemml'l PATENT oFEioE. y

ALBERT iroennmor New YoninN. Y.

. ,"CARBURETEB. l

To allwhom 'it may concern: 1"! 1 l1.313 it known that I, Ai.nnnr"'l{tfiii{, a citizen of the French 4Republic:ii'esidin'g at i\`rewYoi-kA cit lcountyof New fY'oik," and 5 State of New York, have iiive'r'itdicertain newr .and useful lImprovements in Carbureters, fully described and repiesentediiitlie following specification and the accompanying drawings, forming a part of the same. This invention relates generally to`certain iinprm-'einents in carbureters for internal combustion engines, which have a regular air inlet and 'a suction' 'outlet to the 'engine, and relates more particularly ,t'o an improved supplemental or auxiliary air inlet construction for such carbureters.-

.It is one object. ofl the present invention tofprovide a supplemental air inlet of `such construction Athat sprin s, diaphragms and like parts, which are lia le -to get out of order and are easily injured, 'are eliminated.

Itis a further object of the invention to provide such a su plem'ental air inlet which cansbe readily adgusted to permit the quantityiof air passing therethrough to 'be varied as may be necessary or desired, toin sure the properoperation of the engine, and which when 1 once adjusted will remain in position without requiring constant attenl Itis a further object of the invention to provide such Va supplemental inlet which will be 4simple -and cheap to construct, and vwhich will be durable. 1

In the accompanying drawings-Figure l is a sectional view ofa carbureter showing the improved su )plemental air inlet; Fig. -2 isa longitudina section taken on line 2 2 of Fig. 1; Fig. 3 is a similar section taken on line 3-3 of Fig. l; Fig. 4 is a view,

partly in section, of a part of the supplemental-air inlet.; Fig. 5 is a plan view of the construction shown in Fig. 4; Figs. G and 7 are plan views 4of parts of the supplemental 4air inlet showin" the arrangement modified arrangement of ports, ai l Eig. 9

is a; View illustrating the deyel'olin/entof the cani surface by which the Valves are adjusted and controlled.

of ports; Fig. 8 is a simi ar view Slowing a Referring now to said drawings. which illustrate the invention as applied to carburcters of the. constantlevel type, 1 indicates-thetioat cl'iamber and t2 the afloat there- Specification of Letters Patent. Application mea March 17, ioa. serial-No. 483,985.

in, lwhich controls the feed ofdtheg lor other hydrocarbon 'to the mixing 'cham'- ber. This float chamber and float may, h tfoti.'`4 any desired construction. Iiithe constituction shown, the oatfchanibeuis cast inte- 1 grally with the mixing chamber portion'ot"l 'b the Acarbureter, and has provided in its bot-l tom a removable plug 3 in which plug is`4 formed a socket, this socketdiaving positioned therein a spindlel, 'on which spindle thefloat 2 works as it rises and falls'in thef float chanibcr,.a socket 5 being provded iur" the float into which the spindle. 4 fits, .the

spindle thus acting asa support andguider1l for; the float. The float'chainbcr 1 isji'pro-a vided with a removable top oricovcizx ro l7;()

-permit thc assemblage of the'parts. and this l cover `G .has a projection 7 which has an opening 8 through which. thegasolene or other hydrocarbon is fed ironia-suitable source of su )ply (not shown) to the chain-.715 ber. The admission of the gasolene to.thc.l chamber -is controlled by a `gravity `needle valve 9 working in a 4socket 10 in the projection 7, which socket-'has a restricted opening communicating with the opening ,8. 4S0

This valve 9 is guided iiil the socket-by 1 ribbed disks 11. This valve' 9 rests at `its l lower end on the fioatz?, and when a sum-2, cient. amount of gasolene hasbeen fed to the.;, chamber, it is raised by the float 2 and closes the gasolene inlct,' falling with the float the' gasoleiie lowers in the chamber. und'-.

opening the inlet. In order that the tloat 21" may be forcibly moved downward to force a larger suppl)1 of gasoleiie t0 the mining 9o chamber of the carbureter for starting pur poses, a rod 12 is provided, which rodanayl be forced down on the float 'against the action of a spring I3 located iii a socket 1-l in' the part 7 of the top or cover of the'float. a5 chamber. The spring 13 acts against a disk 15 on the rod 12 to force the rod back into posit-ion when the pressure thereon is A4rif-'ff moved. Frointhe float chamber tlicgasol v lelie or other hydrocarbon passes thioughloo the needle or vaporizi ng valve to the uniting, chamber. where itis mixed with air.` The" construction of the. needle valve* may lie- J1l somewhat. yaried. d As shown, there isj'f *A formed integral with the mixing 'clianihc-rf'llOS and thefloat chamber, a projection'i-xtmid-*if ing downward therefrom. so as ito-b' casaly-"h accessible.. This projection "l' if-"fhollow, l

1 therein a plu 'tioned the spindle 19 of the needle valve.

The needle valve is adjustable, and, for ad` forming a socket which atits inner cud opens into theA float chamber. -This socket is mtcriorly threaded at 17, and has screwed 18, in which plug is posid justing'it, there' is formed on thespindl'e 19 a threadedportion 20, the threads of which 'co-act with the interior threads on the inner end of the plug 18, the spindle being turned `by a handle 21. To preventleakage of gasov lene from the valve, there is provided in the .gine may be controlled in ner. as by throttle 35, operated 1n any deouter end of the plug 18 a socket in which is placed packinor 22, held inv position by gland 23. vIn the will of the mixing chamber 25 is l v n n screwed, or otherwise securely positioned, a`

hollow plug 24, this plug being so-positioued that it is inaxial alinement with the plug 18 before 'referred to. This plug 24 is open at one end, and is in communication with the float chamber, and opens at the other end into the mixing chamber. This yplug 24 is smaller than the plug 1S, and is inserted into the wall of the mixing chamber 4through the hollow projection 1G whenihe parts are assembled. vThe end of the plug which opens into the mixing chamber is pro'- vided wlth a restricted .va orizing opening 26. The' needle endof spindle 19 extends into tlris Ahollow p1ug24, and with the ref.

stricted 'opening 26 vaporizes the gasolene which passes through said opening into the mixing chamber. f

.The mixing chamber 25 may be of any usual or desired construction. As illustrated, the mixin chamber has converging inner'walls 27, the vaporized gasolene entering preferably at the point of greater convergence of the walls and about centrally thereof. The chamber is provided witlra main or regular air inlet 28, which 1s 1n l direct communication with the outer air and through which the main or regular air supply is admitted to the carbureter. This inlet 28 is protected by a screen 29 for straining the air as far as possible of dust and other extraneous 4 matter.

25 is provided with a water jacket 30, this water jacket being provided so that the mixsiwed manner. l

The supplemental or aux1liary air inlet.,

which an additional supply of an' may the mixture when increased be added to tends radially `The. mixing chamber speed of' the engine and other conditions rcqulre such additional supply, and the construction ,.of which forms the novel and importantfeature of the invention, will now be described.

The particular construction and arrangement 'of the parts of the su plemental air inlet may be somewhat varie 'In the particular construction shown, this supplemental air inlet includes a casing 3G; This casino' 36 has a fixed part 37 and a part movathle relatively thereto, hereinafter described. l valve chamber 37 and an inlet chamber 37 in communication with the suction' outlet 33 of the mixing chamber and chamber 34 leading to the intake pipe ofthe engine. In the construction shown, the fixed part Tof the. casing is circular and is provided with side walls 38 and bottom 39, from which extends aI central ilan e 40, interiorly threaded, which is adapte to be screwed to acorrespo'ndingly `tl1readed' iiange 41 formed on the upper vpart of themixing chamber 25, and when so screwed ontheflange 41 to remain fixed in pgsition. The bottom 39 exyond the central flange 40, and has near its outer periphery a` plurality of openings-orvports 42 opening into the inlet chamber'37, these openings or ports being provide-d at suitable intervals around the bottom of said chamber and in communication with the outer air". In order that a wide variation in the amount of air assing through the ports 42 may be obtained), these prts'are not all of equal area,.the area. of the ports relatively to veach other, and their position in the casing, and their number, being some-what varied. Preferably, the arca. ofthe ports and their position will be such that the areas of two adjacent ports will be diti'erent In the construction shown in Fig. 7, there are shown twelve ports so arranged that ports such as v43, 44, directly opposite each other, are of the same area, but of different areas relatively to the other portsz thisconstrnct-ion giving a wide variation m the amount of air which may pass through the ports. In Fig. 8 a modification of this arrangement is shown, in which each In the fixed part 37" there is a succeeding port is of different area from the next succeeding one. This arrangement also gives a wide variation in air which may passed through the ports. U

In order to eliminate springs, the valves 42 are gravity valves.

through the ports being in the form of these gravity valves weights 45. One of these weights 45 is prosimilar to that of the ports hereinbefore described.

These'weights V45 may be of any ,120 employed for controlling t-he passage of air l ing: rounded bottoms 46,' so that they may' ft or' seat snugly in the openings or in the casing and have squared .u er rtions.47,' these s uared upper portigilis fdningbearing s aces,'the function of which is hereinafter referred to.

In order to hold the valves in their seats in the ports 42,l and to guide them as they are lifted by' the' suction. of the engine, guides are rovided. In the particu-larcenstructxon own, the tixed part 37 of the casing 36 is provided with an innerwall 50, this inner wall being locatedV centrally` of the casing and extending downward toward the bottom thereof as shown in Fig. l. This inner Wall does not reach the bottom 39, but extends laterallgto and joins the sidewalls,

Vbeing preferab y .formed integrally therewith, formingatlange 5 1, which is provided with openings arranged concentric with the parts' 4:2, thef'areas of each of the openings correspondin' -to the area of the port over Whichit is The weights'45 are placed inrposition through this opening,` and when seated extend slightly above the flange 51,'-the sides of the openingsl thus forming guides for the valves. Tlie'l'ielit of the inlet chamber 3T between the ttom 39 and the flange 51 may, of'couise,be varied.

It will be sutiicienhfhowever, to permit the desired maximum amount of air to pass through rts 42 and to the suction cham-` ber 37 w en'the valves are lifted by the sucbien of the en 'ne. Theinterior Wall 50 extends somew at above the plane of the top of the side walls 38 of the casi and this part of the wall 51 is interior-ly t iread" edas at 52 and adapted "to receive the threaded end ofpipe or casing 34 inclosing chamber 34 leading to the engine.

The adjustable means provided, by which thelift of thevalves may be limited and controlled to, permit 4varying quantities of air to pass through the ports will' now'bede.- scribed.` These means may be somewhat lvaried,'but will include a'bodly movable member ada )ted to contact with the valves and positively controlthe extent of their lift,

this' member ,being adjustable relatively to the valves so that the lift of all the valves may be varied -andcontrolled 4byit.' In 'the p a rticulary construction illustrated, .the peripherv4 of the side Wallsy 38 of the ,fixed part 37]' ofv casing 36 are threaded, laln'd there. is screwed thereon a :flanged dislr53, which has a central opening .54, this central openingl being-of such dimensions 'that it may admit the interior wallst) ofthe fixedl part of the casing '36. before referred to', around 'the outer .side of which-,it fits snuglyf This .cular rib or ring 55, so located on th'face of the disk as to be over the valvesl Preferably.

this lrib,l 55 is a'cam rib, the foifniingga cam surface' rising from a, minimum fco'n tinuously to a maximum, and 'as'l shown de? ,veloped `in Fi 9.

The vflanged "ds'k 53 which carries tiis cam rib beng'fas before stated, rotatable relativel tn. thet'ixedpart '37" of the casing 36, in w ich the valves are ositioned, the lcam may be movedflintp any esired relation to the valves by'rc'jtatiig the disk, and the amount of air supplicdtlii'ough the valves may be varied as desird. s before stated, the valves. are gravitywalves, and are held seated and close tliepo'rts controlled-by them by their own Weiglit,'and are lifted by the suction of the engine. The flanged disk carrying the cam r1 iinav be screwed ldown Auntil the maximum. or high part of the cam comes into contactivith one of the seated valves, the valve with which it is thus in' contact being heldclosej in its seat by the caniagainst -thesuction o .t the l'.engine and no air entersthroi'igh-f'tlie"port #thus closed by this valve. -IThe cam rib is shown inl this 'position in Fig.v 1, holding one of the valves 45 close on its seatagainst jtlie suction of `the engine and closing the 'port controlled by that valve. Inthis position, the lcam surface is'frec of all of the remaining valves which may lift-from their 'may lift, or the lifting flanged disk 53 forms the movable `part of seats and admit air through the portscontrolled by' them. The distances the valves movement of the valves, is varied accordinglto the incline of the cam.' The ports are so'l 'arrangedf'and roportioned that when the disk is screwed down as shown 4in Fig. 1, that is,` untilthe high part 'of ythe cam holds one of the valves ,in its seat, the' minimum amount of air is being'admitted through the remaining ports. Now, if the disk 53, carrying the cam-rib, be rotated to lift the maximum orhigh part of the cam so'that -it is clear of' all the valves, the'valve previously closed is allowed to lift from its seat, the distance it can so lift, or this lifting movement, being according to the dist-ance the cam surfacev has been moved away from it. 'I lie lifting movement of all the other valves has at .the same time been altered, and owing to the inclined surface of the cam, each valve has been given 'a different lifting'movement relatively' to the remaining va'lves,"so that a different amount of air is now admitted through theports. By further rotating tl1e' 'disk,` a still different amountfof air can be' admitted throu h the orts, andso oni Thus the ports can e ad- ]usted to admit 4'any desired amount of air from the'minfim'um up to any desired maximum, a'ndftlie" amount required, :nce'determiiied, is maintained constantly, since the f all -the valves is variedfat'l tlie"saine.ftime.

And further, the"lifting'imovenient otxeach valvev relatively to the others? is different. This results in a very-much finer and more varied ad]ustment beine possible than if the* lifting movement of all the valves wastlie'; same. To hold the disk in proper position after adjustment, a 4locking device is`.em

56, this locking ring being p loyed for securely locking it in'such position. This locking device in the particular construction shown comprises a locking ring rovided with threads which engage with tireads on the upper part of the wall 50 of the casing.

With the construction as hereinbefore described, itis obvious that the supplemental supply of air may be varied within any limits, and that by the 'elimination of -springs,diaplira fms and the like, a construction is obtained by which a positive control of such air is obtained, and-a construction in which the parts are not liable to get out of order or be easily damaged.

.What is claimed is 1. In a carbureter, thel combination with a u mixing chamber having a regular air inlet and suction outlet tothe engine, of a sup 'valves for positively controlling their lift-4 ing movement whereby the quantity of air passing through the ports may be varied.

Y 2. In a carbureter, the combination with a mixing chamber having a regular air iii/let and a suction outlet tothe engine, oja supplemental air inlet in communication with outer air,

ranged the suctionput-let, said supplemental air inlet having ports in communication with the outer air, valves closing said ports and arranged to'be lifted bythe suction of the engine, and a bodily movable member common to said valves for positively controlling their lifting movement, said member .being adjustable, whereby the quantity of air passing through the,ports may be varied. 3. In a carbureter, the combinationwith'a mixing chamber having a regular air? inlet and a' suction outlet to the engine, offri supplemental air inlet in communicationwith 'the suction outlet, said'supplementalgair iri-y let having ports in communication with the valves closing saidports and arto be lifted bythe suction of the engine, and a'bodily movable .member adapted 4;.Ini a carbureter, the combination with :i

...mixing chamber.; hlilyingiiliyegtlar air Iinlet` arid a' suctionioutlebto:tlie'egme of afsuppleinental -Jairfjinletiij'criinunication with fthe suction outletgsiil supplemental air inf Alet including a-easinglliaving'a iizedporton and a portion; movableglrelatively thereto, ports -in said fixed portion in;4 communication with the oute1,a1r, valves seated in said fixed portion .'closing said*- ports and 'arranged'to be lifted bythe suctionof thcfengine, 'and a cam surface' onthe movable portion arranged to contact with the valves to limit' their lift, whereby the quantity of air .passing through 'the ports may bc varied.

5. In a. carbureter,'the combination with a mixing chamber having a'regular air inlet and a suction outlet to the engine, of a supplemental air inlet in communication .with the suction'outlet, said supplementalair iii- 'let including a circular casing having-a fixedportion and a portion rotatable relatively thereto, -ports in said fixed portion in communication with the outer air, valves seated in said ixed portionfclosing said ports and arranged to be lifted by the suction of the engine, and a cam surface on the rotatable portion arranged to contact with said valves to limit their "lift, whereby the quantity of air passing through the ports maybe varied.

n6. In a carbureter, the combination with a mixingchamber having a regular air inlet and a suction outlet to the engine, of a supplemental airy inlet in communication with the suction .outletJ said supplemental air inlet includinv a casing having a fixed portion and a movable portion, portsin said fixed portion in communication with the outer air, valves having seats in the fixedportion closing said ports and arranged to be lifted by the suction of the engine, adja rib on the movable portion havingv a canisurface arranged to contact with the said valves to limit their lift, whereby the quantity of air passing throu li thejprts may be varied.

7.v n a. carbureter, the combination with a mixing chamber having a regular airinlet and a. ksuctionoutlet to the engine, of 'a supplemental air inlet in communication with. the suction outlet, said supplemental air inlet including acircular casing having a lixcd portion and a. portion movable relatively thereto, portslv in said fixed portion in conimunicationi with the outer air,4 their seatsbin said fixed portiorblosing said ports and arranged to be lifte i by the suction of'the engine, and a circul rib on the rotatal'ilel portion having a cam surface a.

ranged to contactfwith said valves tol limit valves having iso their lift whereby the quantity of air passing through the ports may be varied.

8. In a carbureter, the combination with a mixing chamber having a regular air inlet and a suction outlet to the engine, of a supplemental air inlet in communication with the suction outlet, said supplemental air inlet including a casing having a fixed portion and a portion movable relatively thereto, ports in said fixed portion in communication with the outer air, valves having their seats in said fixed portion closing said ports and arranged to be lifted by the suction of the engine, a member on the movable portion common to the valves for limiting the lift of said valves, said member be-I ing adjustable, whereby the quantity of air passing through the ports may be varie'd, and a locking device for locking the adjustable mcans in position when they have been adjusted.

9. In a carburetcrthe combination with a mixing chamber having a regular air inlet and a suction outlet to the engine, of a l supplemental a'ir inlet in communication with the suction outlet, said supplemental air inlet including a casing having a fixed portion and a portion movable relatively thereto, ports in said fixed portion in communication with the outer air, valves having their seats in said fixed portion closing said ports and arranged to be lifted by the suction 4of the engine, a cam surface on the movable portion arranged to contact with said valves to limit their lift, whereby the quantity of air passing through the ports may be varied, and a locking device for locking the cam surface .when it has been moved to the desired position.

10. In a carburoter, the combination with a mixing chamber having a regular air inlet and a suctionoutlet to the engine, of a supplemental air inlet/in communication with the suction outlet, 'said supplemental air inlet including a casing having a fixed portion and a portion movable 'relatively thereto, ports in said fixed portion in communication with the outer air, gravity valves of different areas but of equal heights having their seats in said fixed portion closing said ports and arranged to be lifted by the suction of the engine, and a cam surface on the movable portion arranged to contact with said gravity valves to limit `valves of different areas but of equal height closing said ports and arranged to be lifted b v the suction of the engine, and a circular rib on said rotatable portion arraned to contact with said valves to limit their lift,

whereby the quantity of air passing through the ports may be varied.

12. In a carbureter, the combination with a mixing chamber having a regular air inlet and a suction outlet to the engine, of a supplemental air inlet in communication with the suction outlet, said supplemental air inlet including a casing comprising a valve chamber and an inlet chamber, ports in said inlet chamber in communication with the outer air, valves in said valve chamber for closing said ports and arranged to be lifted by the suction of the engine, and a. cam surface movable relatively to the valves' for limiting their lift, whereby the quantity of air passing through the ports may be varied. i

13. The combination with a carbureter, of a plurality of suction operated valves for supplying auxiliary air and an adjustable member having an inclined surface common to the valves for positively controlling their lifting movement.

14. The combination with a carburetor, of a plurality of suction operated valves for supplying auxiliary air, a casing having ports closed by the valves, and 'a rotary member having a cam surface common to the valves for positively controlling their lifting movement.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

ALBERT KUGLEB.

Witnesses MARCEL TUooI, W. S. THOMPSON. 

